r - R中的corrplot参数

Question

我已经使用了如下的 corrplot，但是正如您所看到的，我需要放大圆圈内数字的字体大小，然后绘图标题的位置和字体大小不正确（不完全可见），但我找不到他们的参数。如果您能提供帮助，我将不胜感激。

library(corrplot)

png(height=1200, width=1200, file="overlap.png")

col1 <-rainbow(100, s = 1, v = 1, start = 0, end = 0.9, alpha = 1)
test <- matrix(data=c(20:60),nrow=7,ncol=7)

corrplot(test,tl.cex=3,title="Overlaps Between methods",
  method="circle",is.corr=FALSE,type="full",
  cl.lim=c(10,100),cl.cex=2,addgrid.col="red",
  addshade="positive",col=col1, diag=FALSE,
  addCoef.col = rgb(0,0,0, alpha = 0.6)
)

dev.off()

Answer 1

问题似乎与您提供的png()withheight=1200和width=1200选项有关。尝试将该行更改为：

png(height=1200, width=1200, pointsize=25, file="overlap.png")

出于某种原因，默认值pointsize = 12会以某种方式减少labelsand的字体。title

编辑：要正确查看标题，请将此参数添加到您的corrplot：

mar=c(0,0,1,0)

所以整个命令集是：

library(corrplot)
png(height=1200, width=1200, pointsize=25, file="overlap.png")
col1 <-rainbow(100, s = 1, v = 1, start = 0, end = 0.9, alpha = 1)
test <- matrix(data=c(20:60),nrow=7,ncol=7)
corrplot(test,tl.cex=3,title="Overlaps Between methods",
method="circle",is.corr=FALSE,type="full",
cl.lim=c(10,100),cl.cex=2,addgrid.col=
"red",addshade="positive",col=col1, addCoef.col = rgb(0,0,0, alpha =
0.6), mar=c(0,0,1,0), diag= FALSE) 
dev.off()